# 定义一个person类
class Person():
    pass


class Cat():
    pass


class Dog:
    pass


class Student:
    pass


# 创建类的对象
# 对象名=类名（）

per = Person() # per是Person类型的对象
cat = Cat()
dog = Dog()
stu = Student()
print(type(per))
print(type(cat))
print(type(dog))
print(type(stu))
